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| author | Ajit Khaparde <ajit.khaparde@emulex.com> | 2011-02-20 11:42:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-02-22 10:26:46 -0800 |
| commit | 609ff3bb8f6cd38c68c719bbc3c31d6b0b9ce894 (patch) | |
| tree | d0b1c965750782ad9daa44099cfd296caef5d0f7 /drivers/net/benet/be_cmds.c | |
| parent | 3968fa1e58896187ee5629db0720d93b9313ad9f (diff) | |
| download | kernel_samsung_smdk4412-609ff3bb8f6cd38c68c719bbc3c31d6b0b9ce894.zip kernel_samsung_smdk4412-609ff3bb8f6cd38c68c719bbc3c31d6b0b9ce894.tar.gz kernel_samsung_smdk4412-609ff3bb8f6cd38c68c719bbc3c31d6b0b9ce894.tar.bz2 | |
be2net: add code to display temperature of ASIC
Add support to display temperature of ASIC via ethtool -S
From: Somnath K <somnath.kotur@emulex.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/benet/be_cmds.c')
| -rw-r--r-- | drivers/net/benet/be_cmds.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index 59d25ac..ff62aae 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -18,6 +18,9 @@ #include "be.h" #include "be_cmds.h" +/* Must be a power of 2 or else MODULO will BUG_ON */ +static int be_get_temp_freq = 32; + static void be_mcc_notify(struct be_adapter *adapter) { struct be_queue_info *mccq = &adapter->mcc_obj.q; @@ -1069,6 +1072,9 @@ int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd) struct be_sge *sge; int status = 0; + if (MODULO(adapter->work_counter, be_get_temp_freq) == 0) + be_cmd_get_die_temperature(adapter); + spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); @@ -1136,6 +1142,44 @@ err: return status; } +/* Uses synchronous mcc */ +int be_cmd_get_die_temperature(struct be_adapter *adapter) +{ + struct be_mcc_wrb *wrb; + struct be_cmd_req_get_cntl_addnl_attribs *req; + int status; + + spin_lock_bh(&adapter->mcc_lock); + + wrb = wrb_from_mccq(adapter); + if (!wrb) { + status = -EBUSY; + goto err; + } + req = embedded_payload(wrb); + + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0, + OPCODE_COMMON_GET_CNTL_ADDITIONAL_ATTRIBUTES); + + be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_GET_CNTL_ADDITIONAL_ATTRIBUTES, sizeof(*req)); + + status = be_mcc_notify_wait(adapter); + if (!status) { + struct be_cmd_resp_get_cntl_addnl_attribs *resp = + embedded_payload(wrb); + adapter->drv_stats.be_on_die_temperature = + resp->on_die_temperature; + } + /* If IOCTL fails once, do not bother issuing it again */ + else + be_get_temp_freq = 0; + +err: + spin_unlock_bh(&adapter->mcc_lock); + return status; +} + /* Uses Mbox */ int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver) { |